Hot-water heater and steam-generator.



Lx O. HEDBLOM.

HOT WATER HEATER AND STEAM GENERATOR. APPLICATION FILED APR,8. ISIS.

1,168,631. Amanned 1311.181916 3 SHEETS-SHEET I.

W/ TlI/ESSES:

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. M Ano/mfr THE COLUMBIA PLANOURAPH Co.. WASHINGTON, n, c4

L. 0. HEDBLOIVI. HoT WATER HEATER AND STEAM GENERATOR.

APPLICATION FILED APR. 8. 1915.

Patented Jan. 18, 1916.

3 SHEETS-SHEET 2.

L. 0. HEDBLONI,

HoT WATER HEATER AND STEAM GENERATOR.

APPLICATION FILED APR.8. |915.

Patented Jan. 18, 1916.

3 SHEETS-SHEET 3 WIT/VESSES:

` ratus of this class which can he entirely f 'Steam- .i enerators,

iinrrn e FATF, C

kilHC)'IJVVATIR HEATER LAND SKTEAMGEERATOR.

i Specification of Letters Patent.

Patented Jan. 18, 1916.

' Appiicaiioa ined Aprile, 1915. serial No. 19,968.

To all 'wlioii iti/my concern Be it known thatl, Lans Oriol* HEDBLOM, alsubject of Gustavus V, King of Sweden, and a resident of NewBrunswickyiii the county oit Middlesex 'and State of New J ersey,"- haveinvented certain new and useful improvements in Hot-Water Heaters and ofwhich the following is a speciii'cation.

My invention is an improvement in water heaters and steanrgenerators,and especially in that class which relates to fast water heaters andconsists in certain novel combinations of parts as will oe hereinafterdescribed and claimed. ,y

One advantage of this invention is topresent a very largeheating surfaceto a small quantity of water.

Another advantage isjto provide a water heater which becomes adapted tosteamy generation by valve readjustment. f

` Another advantage ris to provideconnections between separate water)acketsor con- `tainers without pipes.

`nother advantage is to provide a valve which shuts oli all water when acertain nut,

is removed to permit access to the .main

filter of the apparatus.

Another'advantage is to provide an appadisasseniljiled and inspected. pAnother advantage is to provide an appa.-V ratus of this class thatcanlie greatly aided in resisting pressure by utilizing securingy boltsto 'hold the apparatus together.

y'Further possibilities and advantages will become apparent asthespeciiication proceeds. f

lVith fthe raforesaid advantages `in view,

`the invention comprises the improvements and combinations of partshereinafter described in'their embodiment, pointed out in the claims andillustrated in the accompany-y central crosssection of the. apparatus inyits,

entirety. Fig. 3 is a topview of cylinders A or D of Fig. 2 with thesuper-imposedy flue-.block in Vhorizontal cross section. Fig. 4 isla topview ofcylindersB or E of F10'.

il is a section of Fig. le on line A and B.

l2 is a bottom view of Fig. 9. Fig. 13 is a bottom view of modifiedsecuring means. Fig. l-ilf is a sectional view of Fig. 13.

rihe apparatus is preferably constructed of sheet copper, or anysuitable metal, and

'mainly comprises water containers'or water heater units. Each such unitis actually a liquid heating cell which ymay have any form allowing forthe presenceof a central baille' wall, the purpose of which latteris topartially obstruct the incomingv liquid and to force the latter to iiowto'tlietlremotest portion of the unit before it can turn to the port ofexit. This causes the liquidto contact with one direct heating wallthroughout its course, as it travels rst on one side of thehatfie wallsand returns through the same distance on the other side.

Referring tothe drawings., the same letters' and numerals referto likeparts, ror

parts serving the same purpose throughout all the accompanyingdrawings'.

In Fig. l I have the main principles ofv kmy invention. The heavy dottedlines 'indicate the interior construction. llhe ar rows indicate thegeneral direction taken loy the hot gases rand the definite coursetakenr hy the water through the apparatus.

ln Fig. 2 of the drawings, E, C, DQE and F serve the saine purposes asin Fig. l, `and are the annular walls lof the water heater units orcells. Also c, l), c', d, c and f are the horizontal tops of theheaterunits.

The annular wall A is secured tothe y,

round disk a by spinning in theiupper edge of A as at K, and lorazing orfastening a under this edge loy any means knownto the trade. in the samemanner are the disks 5 c. d, c and ,f secured to their respective ywalls. Disks c and f are similar 'to disks a and el, though of differentdiameters. yDisks ande, however, `are really-'parts'kof the partition orbaffle walls within the heater units and are slightly different fromtheforegoing disks. 'lllie otherwise semilcirf @5. jet Z.

cular flue to the right is here reduced and circular, counter-sunk andprovided with a lid as at and y. Y

Between disks a. and is iitted a Ilue block X here shown in verticalcross section, but Otherwise shown in horizontal cross section in F ig.Li, where the semi-circular flue tothe left is notedby Fig. 7. Returningto Fig. 2, the same flue is occupied by but not noted by letter X, theflue to the eXtreme right by 71, andthe central circular flueaccommodates vertical valve j). n flue block X openings lead from valve79 and also from chambers r into chamber ZJ through aperture r. Thissame flue block is shown in horizontal cross section in F ig. 3.VReturning to F ig. 2, the blocks X', X, X" and kXW are exactly alike.The lowest flue block T has accommodations to the extreme right forreceiving the end of pipe 9, and in the center for seating the lower endof valve y).

Surmounting the apparatus is iiue block U. To the right it receives theend of valve t. To the extreme left is the exhaust vent ll, terminatingin oblique position. in the center of the same iiue block, a collar ornut is fitted to accommodate the stem of valve y). A little to the rightof the latter valve is the externally threaded nut N, tapered at itslower end and projecting down into chamber 72. iln'chamber g is placedvalve N, which engages the lower tapered end of nut N. Valve N is byvirtue of its arrangement forced toward the right Vby screwing down nutN, thus allowing more water to pass valve N. If nut N is removed, thehelical spring on the stem of valve N will close the latter. Directlybeneath nur. N is a strainer and mesh which are accessible by removingthe nut, the flow of water then automatically ceasing as has beenstated.

The flue block y has no horizontal vents from the central or yeXtremeright hand fines, but the flue 7 to the left communicates at 7 Y throughthe external wall with the space (Z in kwhich, the block is situated.Pipe 9 extends downward and connects with pipe z by means of an elbow onthe level of ring R. Pipe z' runs obliquely down through gasv burner Oto valve J. Valve Zt controls pipe Zt, the latter connecting below withan automatic double intalre valve c in casting c. Pipe It connects valvee with external water source. rThe combustible gas is supplied tochamber Z in n from valve Z.

Part of the gas is diverted upward into jet Z Y which is alwaysburning.

` In operation, the valves Zz and J are opened, lpermitting a flow ofwater through the` entire apparatus. The water from Zt will force openand retain valve n against lts spring, and cause gas to pass valve c upinto burner O where it will be ignited by Noting the course of the waterfrom valve n', it iows through pipe ZL to valve Zt, and passing valve Nenters chamber p. Thence the water proceeds through lter M in disk ainto chamberr where it finds lid ai normallyy closed. From chamber r thewater fiows through vvent z' into space b and down between A and B to G.Between G and Z9, the water doubles upon itself and proceeds. upward inspace 2 until it reaches disk b, where the water converges toward thecen trai flue block in space c, and, finding inlet s, arrives in chambera. From chamber a the water dives down to chamber t whence it takes itscourse in space e', down space 3, to annular ring 7c and up throughspace l to space f. Thence the water again converges toward the center,and finding a vent u, enters chamber u. If there were a whole series ofsuch water heater units the water would proceed through the succeedingunits and make the same kind of journey through each as has just beendescribed concerning two suoli units. ln this case, however, the waternow leaves chamber u, flows down through pipe 9 and out through valve Jto external use. j

lWere the apparatus to be used as a steam generator, the steam wouldrise simultane ously all vertical spaces in the heater and seelr ageneral outlet. In order to meet these new conditions, the valve p isprovided. Being turned half a revolution to the right, this valve iscapable of connecting, vby means of slot n, 'the chambers u and tthrough vents n and a. Also chambers a and r. will be connected by slotm through apertures m and m. This will afford the steam the opportunityto rise to theV uppermost chambers and obviate immediate danger ofexplosion. However, in Y order tofurther vfacilitate a more rapid andfree exchange vention from within, small lids w and y yare l provided,being temporary auxiliaries of the central valve in 'case the lattershould be forgotten or used tardily.

lf it be supposed that steam is generated in spaces l, 2, 3 vand 4, itwill rise to the horizontal spaces Zi', o', eand 7 and will rise fromrchamber w to t throuvh solt n c up through flue 7 to chamber a wheremore steam joins 1t from space c. Thence the steam passes'upward throughslot m to chamber/1 and up to p where the entire output or" theapparatus gathers. j

It isto be expected that steam will be generated in spaces 3 andkmorerapidly than in spaces land 2, due to greater exposure to -r heat'.kThe water level `would thus fall' below thatcf spaces liand 2,2butthisfis entirely counteracted by valveigwhich, by

virtue of slot @,permitsvthe water/,fromm spaces 1 and 2to iowintospaces3 yand. 4f, causing a compensating,rise` in these latten The heatedgases fromburner Opass up- `ward` `in chamber 6 where they find flueB,

thencepassingup to Ventv 7 are augmented by` more gases from spaceuaFrom this point the gases'pass upward toven't y11 and then out. i f i ilt is, ofcourse, understood that theuse of gas as fuel is optional, aswelll as auto-` i matic valves o and `N.

In-Fig-2 is shown one method of securing they lower parts ofI theapparatus.y Walls -A and C/ arey clamped downbyring laf in the annularrecess receiving y1t 1n the annular doublering R. y .D and Faresiinilarly secured. this endisillustratedy in Figs. 9, 10 and 1i), ofthe drawings. f

In Figs. 9 and 12,70 is the outer clamp'- ing-ring,.ltl andfR the innerring further shown in F 10, where S and S are the opposed wedges and Sthe securing bolt. .ln i i thesame Figs@ and 12, 7c and hareclampingrings inclosing,waterispaces 1 :and `3,

while O is a clam in rinffcontainin heat:

finesY H. Allother partsare identifiedby similar letters as in 'i otherfigures of the,

drawings; p i i Yetk another method ofsealing the lower extremities isillustrated-zinFigs. 11, 13 and 14; Herey A, C, andv F are exteriorwalls,

Bisl a middle` wall, formed at the bottom intotongues G, G. Fig; 11isi-a bottoinview` of F 1g. `14 on line A B. Returning'toFigs.

13 andA 111, It and R are bandslor rings se-` ln` the lower excured byboltsS, S, S. tremities of A, C, D andF are slots Q, Q, Q, which allow`rings R andy R tov be drawn olf downward without actually removing'bolts S, S, S,"but merely by loosening the saine.

Having thus yfullydescribed my invention,`

what I claim as newand desireto obtain byy Letters Patent 1s: f

1. In a water heaterfor steam generator,

including a water container `ha\f'ing two substantially plane wallsspaced apart,-a water inlet in one of said walls and an outlet in f 2.In an apparatus as described, including'4 water container units," thecombination in each said unit of a substantially plane water deiectingwall anda pair of substantially plane walls spaced from and inclosingthe same, means located at the circum- Another methodk of i'accomplishing ference or edge ofthe baffle wall providing'v` for thepassage ofwater throughoribeyond said edge, a water `inlet inonefinclosing'l wallandany outlet inthe other wall in p0-`sitions-'fprovided to loca-te the water baille wall relatively betweensaid water inlet and. outlet, and independent heat filles/passingyaxially through the walls-of said watercontainer unit and terminating onthe exterior exposedA surfaces of the same, as-described.k

3; In an apparatus as described, including; `a water container having;two walls `spaced apart and water inletl ports in oney offsaid walls andoutlet ports in the other;

airwater baffle wall in said water container;

between the inlet and outlet ports and-*a plurality of independent heatflues running through saidy water container directly` through thespacedwalls thereof and in-r cluded water bailiewall, substantially asdescribed.

l. In an apparatusasdescribed, including a pair of spaced parallelywallswith ay pipe fitted toleach in the central portion thereof andawall 'or .junction uniting.r saidv walls at their peripheries; a waterbaillev wall spaced between said parallel walls, the edge f of thebaiilewall being spaced from and within the peripheral junction, independentheatffluesy running `through said parallel walls and included bafflewall, substantially` as described.

5; vnthe ,exterior water circuit of an vapparatus asdescribed, a valvecontainingy a valve pistony retained against.` a helical spring mountedonthe sha-nl: of saidl piston i in'open. position by obstructivecontactfof the butt of said shank with an inward pro` jection of athreaded cap fitted in said valve iny a positionl directly above astrainer/located within said valve, said strainerbeing accessible andsaid. rValve simultaneously closable upon removal of said 'threaded cap,substantially as described.

6. In an apparatusv as described, including a plurality of spaced watercontainers provided with water baille walls; a series of flue blocksarranged interiorly and eXteriorly of said water containers to provideoneblock between each pair of adjacent surfaces, heat fiues runningthrough the extentn of said seriesand all interposed surfaces andcommunicating with the spaces betweenk each adjacent pair of water`containers through side apertures in the blocks `located in saidyspaces, also independent water channelsrunning through said flue blockseries and all interposed surtaces except the water rbaffle walls andcommunicating with thewatery spaces within the water containers throughside apertures in blocks located in said water spaces, the uppermostblock of said series surmounting the apparatus being fitted with pipesto the water channels in said block leaving open the heat lines thereiioin', the lowest block of said series being secured beneath the lowestwater container and provided 'with pipes to the Waterchannels in saidblock leaving open the heat QSE1-lues therein, bolts running clearthrough the tween said water containers through their lower Vextreme oredge portions, said means comprising pipes individually controlled byvalves,'substantially as described.

9. Iny an apparatus as described, including a plurality of spaced watercontainers provided with water baffle walls as described, a yvalvecasing secured to the lower extreme or edge portions ofsaid watercontainers and communicating with said containers 'through apertures, avalve cylinder being fitted in said valve casing containing slots toprovide Vconnection between said aper- .tures and rotatable to bringsaid slots into or out of proximity to said apertures, and meansproviding temporary connection between the spaces separated by therwater baille walls within said water containers, said means comprising'easily raised lids movablysecured in'apertures located in thehorizontal portions of the water baffle walls, as described. 'i Y l0.In'an apparatus as described, includ- A ing a series of liuc blocks incombination with water containers, a valve seating'extendingthroughoutsaid series of flue blocks with apertures opening into said seating fromthe water channels in all blocks located within water containers, avalve cylinder fitting into said seating and containing slots to provideconnection between `said' water .channel apertures, and being rotatableto bring said slots intoy or outof proximity to saidapertures, asdescribed. y

11. In an apparatus as described, including a plurality of watercontainer units provided with interior water bale walls; the provisionofy said water containers inthe form of a concentric series of spacedhollow cylinders with closed tops continuous with the individual wallsof said cylinders, said series inclosing a cylindrical heat chamber openbelow, a downward extension of the exterior surface of the outermostwater container providing housing for heating means and an extensionabove providing a dome and chimney, substantially as described.

l2. In an apparatus as described, including a series of cylindrical,concentric and similar' water containersinclosing a central chamber openbelow; the disposition of a water baiile wall relatively intermediate ofthe walls of each said water container parallel therewith and followingin spaced `fashion the form of the walls inclosing the same, the lowerextremity thereof being spaced within and above the llower terminationof the exterior walls and meansproviding removable lower junctions 0fsaid exterior walls and detachable means for? tric series with the lowerannular extremities thereof registering with one another. a shoulderformation toward each other of the pairrof said lower extremities ineach container unit, providing an annular junction of said extremitiesby contact, said junction being substantially parallely to the upperannular portions of the container unit walls, an annular ring exteriorlyfitting each said junction, another ring fitting the inner exteriorsurface of each said junction, a

plurality of bolts running radially through said rings and includedjunctions securing the same, a plurality of long, radially'disposedbolts running through the entire series of annular rings and junctionsspacing the adjacent junctions apart and securing the whole series, andslots in the lower edges of the waterY container walls opening downwardfrom all said securing'bolts, permitting all rings and bolts to drop oifupon loosening said bolts. as described.

Signed at New York in the county of New York and State of New York thissecy ondday of April A. D. 1915.

VWitnesses:

ELIAS JOHNSON, C. F. WM. FonssBERG.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, ZD. C.

Lans oLoFVHEDBLoMQ

